Home / 11,904.66-16,428.28-6,868.81

Finding the Fourth Proportional to 11,904.66, 16,428.28 and 6,868.81

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Solution

The fourth proportional to 11,904.66, 16,428.28 and 6,868.81 is: 9,478.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,904.66 : 16,428.28 = 6,868.81 : x
  2. Step 2: Convert to fraction form
    11,904.66/16,428.28 = 6,868.81/x
  3. Step 3: Cross multiply
    11,904.66x = 16,428.28 × 6,868.81
  4. Step 4: Simplify right side
    11,904.66x = 112,842,733.95
  5. Step 5: Solve for x
    x = 112,842,733.95/11,904.66
  6. Step 6: Final answer
    x = 9,478.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.